20937528

素因数分解:

$2^3\times 3^4\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 59532000

約数和(自身を除く): 38594472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 79, 81, 108, 158, 162, 216, 237, 316, 324, 409, 474, 632, 648, 711, 818, 948, 1227, 1422, 1636, 1896, 2133, 2454, 2844, 3272, 3681, 4266, 4908, 5688, 6399, 7362, 8532, 9816, 11043, 12798, 14724, 17064, 22086, 25596, 29448, 32311, 33129, 44172, 51192, 64622, 66258, 88344, 96933, 129244, 132516, 193866, 258488, 265032, 290799, 387732, 581598, 775464, 872397, 1163196, 1744794, 2326392, 2617191, 3489588, 5234382, 6979176, 10468764, 20937528]

約数ペア:

[(1, 20937528), (2, 10468764), (3, 6979176), (4, 5234382), (6, 3489588), (8, 2617191), (9, 2326392), (12, 1744794), (18, 1163196), (24, 872397), (27, 775464), (36, 581598), (54, 387732), (72, 290799), (79, 265032), (81, 258488), (108, 193866), (158, 132516), (162, 129244), (216, 96933), (237, 88344), (316, 66258), (324, 64622), (409, 51192), (474, 44172), (632, 33129), (648, 32311), (711, 29448), (818, 25596), (948, 22086), (1227, 17064), (1422, 14724), (1636, 12798), (1896, 11043), (2133, 9816), (2454, 8532), (2844, 7362), (3272, 6399), (3681, 5688), (4266, 4908)]